What are the differences between National V and National VI?

[LaDelaney]

National V and National VI both refer to emission standards, with the following main differences: 1. Sulfur content: The maximum sulfur content for National VI standard gasoline is 50mg/kg, while for National V standard gasoline it is 10mg/kg. 2. Implementation time: The National VI standard was implemented in 2014, whereas the National V standard was implemented in 2017. 3. Particulate matter quantity: Compared to National VI, National V gasoline vehicles have a 25% stricter limit on nitrogen oxides, and diesel vehicles have a 28% stricter limit on nitrogen oxides.